Multi-Crop Production Decisions and Economic Irrigation Water Use Efficiency: The Effects of Water Costs, Pressure Irrigation Adoption, and Climatic Determinants

Fan, Yubing; Massey, Raymond E.; Park, Seong C.

doi:10.3390/w10111637

Cited by 15 publications

(7 citation statements)

References 64 publications

(130 reference statements)

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“…At a very low irrigation level, the water in the soil will not reach the environment required for the growth of lettuce, thus forming soil water deficit and affecting its growth rate. This finding is consistent with the results of previous studies [31,32]. The results of growth physiological parameters of leaf-expansion lettuce in the first season and heading lettuce in the second season showed that the E and g sc of lettuce in the second season were lower than those in the first season.…”

Section: Discussionsupporting

confidence: 93%

Effect of Different Water Treatments in Soil-Plant-Atmosphere Continuum Based on Intelligent Weighing Systems

Gao

Guo

Shi

et al. 2022

Water

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In order to meet the needs of dynamic continuous monitoring of soil–plant–atmosphere continuum (SPAC), a new soil, plant, atmosphere analysis system has been established based on an intelligent weighing system (IWS). Four types of irrigation treatments (90%, 80%, 70%, and 60% of field capacity (FC)) were conducted on lettuce (Lactuca sativa var. ramosa Hort.) for two-season planting experiments. Regarding the soil, the relative system weight of IWS showed a significant linear correlation with the soil volumetric moisture content (SWC) (R2 = 0.64–0.94). When the SWC increased by 1.00%, the soil weight increased by 56–62 g. Regarding plants, the IWS also clearly reflected the changes in plant weight gain, transpiration rate, and stomatal conductance at different growth stages. After verification, the relative errors of the transpiration rate and stomatal conductance measured by the IWS were −9.60–22.30% and −7.20–22.20%, respectively. Regarding the atmospheric environment, the variation trend of the crop evapotranspiration (ETc) based on the IWS and the reference crop evapotranspiration (ET0) calculated with meteorological parameters were consistent. However, the numerical difference was in the uncertainty of the crop coefficient (Kc). The ETc of lettuce under the 80% FC treatment was the highest. Accordingly, a daily online measurement method for Kc was established. The Kc values of lettuce at different growth stages were 0.88, 1.22, and 2.43, respectively. The growth, yield, and water use efficiency (WUE) of crops under 80% FC treatment compared with other treatments significantly increased by 11.07–21.05%, 0.91–9.89%, and 2.16–15.80%, respectively. Therefore, the 80% FC was adopted as the irrigation low limit of potted lettuce. The experimental results provide a theoretical basis for further guiding crop irrigation.

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Section: Discussionsupporting

confidence: 93%

Effect of Different Water Treatments in Soil-Plant-Atmosphere Continuum Based on Intelligent Weighing Systems

Gao

Guo

Shi

et al. 2022

Water

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“…It is easy to fully express the amounts of irrigation water referred to above W m , W l , W w , regardless to the formula of both the productivity function or the cost function, but there is a great difficulty in fully expressing each of the water quantities W el and W ew . So the research presented equations (12) and (15) or figures (2) and (3) where through them and amounts of water W el and W ew can be easily found depending on the amount of water W m , W l , W w .…”

Section: Resultsmentioning

confidence: 99%

“…Water stress negatively affects plants. Depending on the degree and extent of water deficit stress, plants growth and the physiological functions can be limited and affected [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Water Management under Deficit Irrigation

Yasin¹,

Ghazal²

2020

(AREJ)

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Depending on the production function, irrigation water cost function and the sale price of yield, previously, lengthy mathematical expressions have been developed to estimate the optimal levels of water used in deficit irrigation, that would maximize yield (W m), under water limiting (W w), and under land limiting (W l) and the amount of water that leads to income equal to income of W m when land is limited (W el), and that leads to farm income equal to farm income of W m when water is limited W ew. Therefore, in this paper, firstly the previous lengthy expressions for (W el) and (W ew) were simplified. Secondly, simple expressions for both (W el) and (W ew) were derived under presence of rainfall. Thirdly, very simple mathematical relations between (W m & W l) and (W m & W w) were derived in order to determine much easier expressions than those previously derived for W el , and W ew respectively, with and without rainfall.

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“…Two studies provide additional perspectives on sustainable water use practices using multilevel models and virtual water trade assessments. Using multilevel linear regression models (MLMs), Fan et al's (2019) [16] study analyzed the effects of multiple factors on farmers' decision making and economical irrigation water use efficiency (EIWUE) in a multi-crop production system. The study was conducted across five regions, encompassing 48 states in the USA (Western, Plains, Midwestern, Southern, and Atlantic states) with different cropping patterns and climatic conditions.…”

Section: Content Of the Special Issuementioning

confidence: 99%

Water Management for Sustainable Food Production

Kannan

Anandhi

2020

Water

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The agricultural community has a challenge of increasing food production by more than 70% to meet demand from the global population increase by the mid-21st century. Sustainable food production involves the sustained availability of resources, such as water and energy, to agriculture. The key challenges to sustainable food production are population increase, increasing demands for food, climate change, and climate variability, decreasing per capita land and water resources. To discuss more details on (a) the challenges for sustainable food production and (b) mitigation options available, a special issue on “Water Management for Sustainable Food Production” was assembled. The special issue focused on issues such as irrigation using brackish water, virtual water trade, allocation of water resources, consequences of excess precipitation on crop yields, strategies to increase water productivity, rainwater harvesting, irrigation water management, deficit irrigation, and fertilization, environmental and socio-economic impacts, and irrigation water quality. Articles covered several water-related issues across the U.S., Asia, Middle-East, Africa, and Pakistan for sustainable food production. The articles in the special issue highlight the substantial impacts on agricultural production, water availability, and water quality in the face of increasing demands for food and energy.

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Multi-Crop Production Decisions and Economic Irrigation Water Use Efficiency: The Effects of Water Costs, Pressure Irrigation Adoption, and Climatic Determinants

Cited by 15 publications

References 64 publications

Effect of Different Water Treatments in Soil-Plant-Atmosphere Continuum Based on Intelligent Weighing Systems

Effect of Different Water Treatments in Soil-Plant-Atmosphere Continuum Based on Intelligent Weighing Systems

Water Management under Deficit Irrigation

Water Management for Sustainable Food Production

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